package com.jugheadzhou.core.zk.helper;

import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;

public class IPUtil {
	public static String getRealIp() {		
        String localip = null;// 本地IP，如果没有配置外网IP则返回它		
        String netip = null;// 外网IP		
        Enumeration<NetworkInterface> netInterfaces = null;		
        try {		
            netInterfaces = NetworkInterface.getNetworkInterfaces();		
        } catch (SocketException e) {		
            e.printStackTrace();		
        }						
        InetAddress ip = null;		
        boolean finded = false;// 是否找到外网IP		
        while (netInterfaces.hasMoreElements() && !finded) {	
            NetworkInterface ni = netInterfaces.nextElement();		
            Enumeration<InetAddress> address = ni.getInetAddresses();		
            while (address.hasMoreElements()) {		
                ip = address.nextElement();		
                if (!ip.isSiteLocalAddress() && !ip.isLoopbackAddress() && ip.getHostAddress().indexOf(":") == -1) {// 外网IP		
                    netip = ip.getHostAddress();		
                    finded = true;		
                    break;	
                } else if (ip.isSiteLocalAddress() && !ip.isLoopbackAddress() && ip.getHostAddress().indexOf(":") == -1) {// 内网IP		
                    localip = ip.getHostAddress();

                }	
            }	
        }

        if (netip != null && !"".equals(netip)) {	
            return netip;		
        } else {		
            return localip;		
        }		
	}
}
